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T4 SERIES BUSINESS PHONE WITH PERPCOLOR LCD SCREEN AND BUILT IN WIFI
T4 SERIES BUSINESS PHONE WITH PERPCOLOR LCD SCREEN AND BUILT IN WIFI

- Price:
$118.99
- Availability:
- Mfr #: SIP-T44U
- UNSPSC #: 43191511
- Item #: 011312070
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IP Telephony
Main Features | Multiple VoIP protocol support, integrated Ethernet switch |
VoIP | Yes |
VoIP Protocols | SIP, RTCP-XR, VQ-RTCPXR, SRTP |
Voice Codecs | G.722, G.711a, G.711u, G.723.1, G.729, G.729A/B, G.726, iLBC |
Lines Supported | 12 lines |
Quality of Service | IEEE 802.1Q (VLAN), IEEE 802.1p, Layer 3 TOS |
IP Address Assignment | DHCP, static |
Security | TLS, SSL, AES, IEEE 802.1X, SRTP |
Power Over Ethernet (PoE) Support | Yes |
Network Protocols | Lightweight Directory Access Protocol (LDAP), FTP, TFTP, HTTP, HTTPS, SNTP, UDP, TCP, DNS SRV, DSCP, IPv6, Link Layer Discovery Protocol (LLDP), Cisco Discovery Protocol (CDP), DHCP, VLAN, IP, SRTP, TR-069, STUN |
Network Ports Qty | 2 x Ethernet 10Base-T/100Base-TX/1000Base-T |
Compatible Software | Yealink Redirection and Provisioning Service (RPS) |
Voice Features | Yealink Optima HD voice technology, HD audio, acoustic echo cancellation (AEC), voice activity detection (VAD), comfort noise generation (CNG), packet loss concealment (PLC), adaptive jitter buffer (AJB), automatic gain control (AGC), HD Voice |
Network Features | 12 SIP identities / accounts, Lightweight Directory Access Protocol (LDAP), IEEE 802.3af, Class 2 PoE, Network Address Translation (NAT) Traversal, STUN, ICE |
Phone Memory
Phone Directory Capacity | 1000 names & numbers |
Miscellaneous
Connections | Headset jack / RJ-9 ¦ Handset jack / RJ-9 ¦ 2 x USB |
Hearing Aid Compatible | Yes |
Placing / Mounting | Wall-mountable, table-top |
Cables Included | Ethernet cable - 6.6 ft |
Included Accessories | Stand |
Dimensions & Weight (Handset)
Width | 9.7 in |
Depth | 8.8 in |
Height | 4.7 in |
Dimensions & Weight (Base)
Width | 8.9 in |
Depth | 8.1 in |
Height | 6.9 in |
General
Product Type | VoIP phone |
Body Color | Classic gray |
Phone Features
Call Services | Call Forwarding, Call Waiting, Call Transfer, Call Hold, Voice Mail, Call park/pickup, Caller ID |
Caller ID Type | Caller ID |
Dialer Location | Base |
Conference Call Capability | 5-way |
Speakerphone | Yes |
Volume Control | Yes |
Indicators | Voice message waiting indicator, call waiting indicator, busy lamp field (BLF) |
Additional Functions | Acoustic Shield Technology, call recording, redial, speed dial memory, emergency call, mute, auto answer, Do Not Disturb (DND), blacklist, Bridged Line Appearance (BLA), anonymous call, anonymous call rejection, HD Voice |
Power
Power Consumption | 1.7-4.1 W (PSU), 2.0-4.9 W (PoE) |
Display
Type | LCD display - color |
Display Location | Base |
Diagonal Size | 2.8" |
Display Resolution | 320 x 240 pixels |
Backlit | Yes |
Display Languages | Multilingual |